George l



(No Model.)

G. L. WIOKS.

DUMPING snow.

No. 248,820. Patented Oct. 25,1881.

IINVENTOR:

ATTORNEYS.

WITNESSES N. PETERS. Fhom-Lilhogmpher. Washin ton. D. c.

ATENT tries.

GEORGE L. \VIOKS, OF CITY ISLAND, NEW YORK.

DUMPlNG-SCOW.

SPECIFICATION forming part of Letters Patent No. 248,820, dated October 25, 1881.

Application filed July 13, 1881.

To all whom it may concern Be it known that I, GEORGE L. VVICKS, of City Island, in the county of Westchester and State of New York, have invented a new and Improved Dumping-scow, of which the following is a specification.

The object of my invention is to provide a dumping-scow having such construction that light as well as heavy material maybe quickly and easily removed from the scow.

1n the accompanying drawings, Figure 1 is a plan view of my improved scow with a portion of the deck broken away. Fig.2is a central longitudinal section of the same, and Fig. 3 is a cross-section taken on line as 00 of Fig. 1.

Similar letters of reference indicate corresponding parts.

The sides of the scow are made so as to wall in the air or float chambers B B, which chambers are closed at the ends by the end boards, G G. The top of the chambers and the crossboards D D form the deck of the scow, and the chambers are tied together and the boat strengthened by the cross-beams E and E under the deck and at the bottom of the scow, as shown, and the bottom cross-beams, E, form the jambs against which the bottom gates, F, close. These bottom gates are hinged to the lower inner corners of the air-chambers B B, and they may be opened and closed by anysuitable power mechanism, preferably by means of the chains ff, which are attached to them and pass over the pulleys g g on the upper cross-pieces E, and thence over the shafts G G, supported upon the deck, as shown, which shafts are adapted to be revolved by the crossshaft H and the gearings h h, powerbeingapplied to the shaft II by means of the crank and gearing i and i.

The end boards, 0 O, are cut through in the center, forming the large openings 0 U at the ends of the scow, and these openings are closed by the vertically-sliding gates A A, which fit in the ways a a, formed in front of the openings by the diagonal corner-pieces b I) and the lower ends of the posts J J, which latter reach to the bottom of the scow and some distance above the deck, as shown in Figs. 2 and 3 of the drawings. The upper ends of the posts J J are tied together by the cross-bars K K; and in order to raise and lower the gates A A, I

(No model.)

provide the cross-bars K K with the pulleys k 70, and the posts with the pulleysjj,over which pulleys the chains L L, which are attached at one end to the upper corners of the gate, pass, the other ends of the chains passing over the windlasses P l, secured upon the deck.

The corner-pieces b b are made diagonal, so as not to hold or obstruct the outflow of the material when the end gates are opened.

1n dumping the cargo it is preferable to open the bottom gates first, so as to lighten theload ofthe scow by the sinking of such of the material as will sink. The end gates are then to be opened and the scow towed ahead, thus causing a strong current of water to rush entirely through the scow, sweeping it clear of everything which would not sink.

IVhen the seowis emptied and being brought again to dock, it will be understood that the end gates should be left open, as the resistance of the water upon it will by that means be much reduced, requiring much less power to tow it; and this advantage, together with the ease and thoroughness of clearing of the scow, constitute the great advantages of my invention.

In some instances I propose to provide suitable covers for the hold of the scow, to rest, when in place, upon the edges of the deck,for inclosing the matter being transported.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination, with front boards, C, and corner-pieces b, of the uprights J, crosspieces K, end doors, A, and mechanism for raising said doors, substantially as described, whereby said end doors may be raised above the deck and the whole inside of the scow exposed to the action of the current.

2. The combination, with the posts J, the front boards, 0, and-cornerpieees b, of the inclined end gates, A, operated substantially as described, whereby when the gates are closed the resistance offered to the water by said gates is diminished, as set forth.

GEORGE L. WIOKS. Witnesses:

WILLIAM GEORGE TRUrrT, ISAAC MARIE. 

